The groundwater
modeling solution

GMS is a comprehensive groundwater modeling environment with GIS based graphical preprocessing tools to automate and streamline the modeling process. GMS seamlessly interfaces with MODFLOW and several other preeminent groundwater models, and provides advanced graphical features for viewing and calibrating model results.

• GMS Overview
• What's New in 7.1
• GMS Pricing
• GMS Tutorials
• System Requirements
• Password Request

Talk to Sales

Speak with a knowledgeable sales representative to learn more about our products and get your questions answered.

Visit the Wiki or Forum

Visit the XMS Wiki to learn more or interact with the user community and find answers to questions on our forums.

Contact Support

We provide phone and email technical support to all current license holders.

Get Training

Get hands-on training from modeling experts - attend a scheduled course or have us
come to you.

Consult with Experts

Take advantage of a consulting team with a proven track record and years of experience in water modeling.